| ERROR | received authoritative name string when we are its authority |
| CAUSE | a server X received authoritative data from another server Y when server X is also authoritative for the data. Such situations should never arise because if server X is authoritative for the requested data, it should never forward the request to another server. |
| ACTION | An internal error not normally visible to the user. For further details, turn on tracing and restart the server. If the error persists, contact Worldwide Customer Support. |